<html><body><div style="font-family: lucida console,sans-serif; font-size: 12pt; color: #000000"><div data-marker="__QUOTED_TEXT__"><div style="font-family: 'lucida console' , sans-serif; font-size: 12pt; color: #000000;" data-mce-style="font-family: 'lucida console' , sans-serif; font-size: 12pt; color: #000000;"><div>Hello Everyone,</div><div>I am trying put tougher transfer feature with in MS Teams.</div><div>And based on my research and testing right now is not possible with opensips.</div><div>MS Teams are sending on hold in case of transfer and onhold as a=inactive.</div><div>Major problem they require encode/decode params in REFER-TO REFER-BY.</div><div><br data-mce-bogus="1"></div><div>MS Teams expect observe REFER with 202 and decode params with future action.</div><br><div>Here official requirements doc.</div><div> </div></div><div data-marker="__QUOTED_TEXT__"><a href="https://docs.microsoft.com/en-us/microsoftteams/direct-routing-protocols-sip#call-transfer" data-mce-href="https://docs.microsoft.com/en-us/microsoftteams/direct-routing-protocols-sip#call-transfer">https://docs.microsoft.com/en-us/microsoftteams/direct-routing-protocols-sip#call-transfer</a></div><div data-marker="__QUOTED_TEXT__"><br data-mce-bogus="1"></div><div data-marker="__QUOTED_TEXT__">Any suggestion welcome.</div><div data-marker="__QUOTED_TEXT__"><br data-mce-bogus="1"></div><div data-marker="__QUOTED_TEXT__">volga629.</div><div><br></div><br></div></div></body></html>